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http://dx.doi.org/10.7844/kirr.2020.29.6.57

A Study of Organic Impurity Removal Efficiency for Waste LCD Touch Panel Glass by Solvents Types  

Kang, Yubin (Institute for Advanced Engineering(IAE))
Choi, Jin-Ju (Institute for Advanced Engineering(IAE))
Park, Jae Layng (Institute for Advanced Engineering(IAE))
Lee, Chan Gi (Institute for Advanced Engineering(IAE))
Publication Information
Resources Recycling / v.29, no.6, 2020 , pp. 57-64 More about this Journal
Abstract
In this study, removal of OCA and organic impurities for recycling LCD touch panel glass was conducted by mechanical and chemical dissolution methode. Cut mill and oscillation mill were used for mechanical crushing of touch panel, and water, ethanol, dichloromethane were used to remove OCA and organic impurities. As a result of TGA, when applied only dicloromethane in the process, the efficiency of organic removal was to be best. In addition, removal effect of organic impurities increased as the cleaning temperature increased. As a result of zeta potential analysis to confirm the dispersion degree of touch panel glass in the solvent, the absolute value of the zeta potenial of water with the lowest cleaning effect was lower than other solvents, and it was confirmed that efficiency of organic removal is affected not only by the chemical dissolution properties but also the physical dispersion properties in the solvent.
Keywords
Waste display; LCD touch panel; OCA; Glass; Recycling;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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1 Yeong-Jun Park, 2019 : Display Technologies for Immersive Devices and Electronic Skin, Electronics and Telecommunications Trends, 34(2), pp.10-18.
2 Korea Customs Service, 10 major import and export items, https://www.index.go.kr/potal/main/EachDtlPageDetail.do?idx_cd=2455, November 2, 2020.
3 Seong-Kyun Kim, Il-Young Jang, 2018 : Application of LCD Waste Glass Fine Powder for High Performance Concrete Development, Magazine of RCR, 13(1), pp.14-20.   DOI
4 Dongyoon Shin, Leeseung Kang, Jae Layng Park, et al., 2015 : Current Research Trend on Recycling of Waste Flat Panel Display Panel Glass, Journal of the Korean Institute of Resources Recycling, 24(1), pp.58-65.   DOI
5 Sungkyu Lee, Leeseung Kang, Chan Gi Lee, et al., 2013 : Disassembly and Compositional Analysis of Waste LCD Displays, Journal of the Korean Institute of Resources Recycling, 22(2), pp.29-36.   DOI
6 Juhee Suh, Jungwoo Shin, Hyokap Kim, et al., 2010 : Effect of Poly(vinyl alcohol) Adhesives on the Dimensional Stability of LCD Polarizer, Polymer(Korea), 34(6), pp.560-564.
7 Chang Hyuk Lim, Yong Jae Jung, Ur Ryong Cho, et al., 2009 : A study on Synthesis of Acrylic Pressure Adhesive for Polarizer Film by Solution Polymerization, Elastomers and Composites, 44(2), pp.175-181.
8 M. S. N. Salleh, N. N. Mohamed Nor, N. Mohd, et al., 2017 : Water Resistance and Thermal Properties of Polyvinyl Alcohol-starch Fiber Blend Film, AIP Publishing LCC, 1809(1), pp.020045-1-020045-10.
9 J. R. Schaefgen, I. M. Sarasohn, 1962 : Observations on the Thermolytic Decomposition of Poly(tert-butyl Acrylate), Journal of Polymer Science, 58(166), pp.1049-1061.   DOI
10 Ahmed El Nemr, Safaa Ragab, Amany El Sikaily, et al., 2016 : Testing Zinc Chloride as a New Catalyst for Direct Synthesis of Cellulose di- and tri-acetate in a Solvent Free System Under Microwave Irradiation, Carbohydrate Polymers, 20(151), pp.1058-1067.
11 Hyun Seon Hong, Mansik Kong, Sungkyu Lee, et al., 2010 : Overview and Future Concerns for Recycling Display Wastes, Korean Industrial Chemistry News, 13(1), pp.10-19.
12 Yubin Kang, Soojung Son, Kun-Jae Lee, 2015: Dispersion Control and Characterization of the SiO2/PMMA Particles Using Surface Charge, Journal of Korean Powder Metallurgy Institute, 22(6), pp.403-407.   DOI